Andrew Trick 12d1ebe943 Enable SCEV-based unrolling by default. ... This changes loop unrolling to use the same mechanism for trip count computation as indvars. This is a stronger check that tends to unroll more loops. A very common side-effect is that many single iteration loops will be removed sooner. The real goal was simply to remove dependence on canonical IVs. x86 is break even. ARM performance changes to expect (+ is good): External/SPEC/CFP2000/183.equake/183.equake +13% SingleSource/Benchmarks/Dhrystone/fldry +21% MultiSource/Applications/spiff/spiff +3% SingleSource/Benchmarks/Stanford/Puzzle -14% The Puzzle regression is actually an improvement in loop optimization that defeats GVN: rdar://problem/10065079. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139009 91177308-0d34-0410-b5e6-96231b3b80d8		2011-09-02 17:26:28 +00:00
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Hello	Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.	2010-10-07 00:31:16 +00:00
InstCombine	Reduce indentation. No functionality change.	2011-09-01 21:29:49 +00:00
Instrumentation	When inserting new instructions, use getFirstInsertionPt instead of	2011-08-25 01:08:34 +00:00
IPO	C API functions must be able to see their extern "C" definitions, or it will be impossible to call them from C.	2011-08-19 01:36:54 +00:00
Scalar	Enable SCEV-based unrolling by default.	2011-09-02 17:26:28 +00:00
Utils	Address review comments.	2011-08-26 02:25:55 +00:00
CMakeLists.txt	Move library stuff out of the toplevel CMakeLists.txt file.	2011-02-18 22:06:14 +00:00
Makefile	Revert r100896 and around - this breaks the only mingw32 buildbot we have.	2010-04-15 19:51:42 +00:00